Improvement in combined fastenings and buffers for doors and shutters



NTE STATES PATENT CFFICE.;

WELLINGTON C. WEN DELL, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN COMBINED FASTENINGS AND EUFFERS FIIR IIHS AND SHUTTERS.

Specification forming part of Letters Patent No. 116,379, dated June 27,1871.

To all 107mm t may concern:

Be it known that I, 'ELLINGTON U. VVEN- DELL, of Philadelphia, in thecounty of Philadelphia and State of Pennsylvania, have invented a newand Improved Door and Shutter-Fastening and Buffer-Cushion combined; andI do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawingmaking part of this specification, in which- Figure l is a sectiontakenhorizontally through adoor and door-framein the plane of theimproved fastening and buffers.- Figs. 2 and 3 are sectional views ofthe fastenings and buffers. Fig. tis an end view thereof'.

Similar letters of reference indicate correspondin g-parts in theseveral figures.

In the drawing I have represented the fastening applied for holding adoor or shut-ter closed, but the main object and design of my inventionis to hold doors or shutters open 5 and when thus used the rubber blockwill be applied to the wall or base board and the socket to the oppositeside of the door to that shown. The nature of my invent-ion consists inthe combination, with a socketed block, I), of an India-rubber block,a', combined by a central adjustable fastening.

The following is a description of my improved fastening andbuffer-cushion combined.

In the accompanying drawing, c represents a block of India rubber of aspherical form and having a hole diametrically through it. Through thisblock is passed a screw, c, by means of which it is secured in properposition for use. The drawing, Fig. l, represents the block ct securedto a door-frame, A, with cupped washer d applied as a bearing for thisblock. At a proper point with respect to the position of the block c ahole is bored into the door B, and a socketed block, b, is driventherein, as shown in Fig. 1. This block b is bored out to receive therubber c when the door B is in the position as shown. The block b isbored out so that it is'larger interiorly than it is at the marginalentrancet' t', thereby allowlowing the rubber' block to expand andobtain a hold upon the walls of the socket after it has been crowdedthrough said entrance, as shown in Figs. 2 and 3. A hole, h, is alsobored through the block b, or to a depth sufficient to receive the headof the screw c which retains the rubber block a, by which it (a) acts asa buffer or cushion, striking against the bottom of the recessed blockb. and eft'ectually preventing the door B from striking violentlyagainst the door-frame A or wall of the room.

It will be seen from the above description that the India-rubber ball ais confined in place to the door-frame A by means of a screw whichpasses through the center of the block and serves as a means forexpanding the block, as shown in Fig. 3, when it becomes too small forthe chamber behind the contracted entrance 'L' in the socketed block I)or, if the block a. should be tool-arge to enter its socket freely, thescrew c can be partially withdrawn, so as to allow the rubber block tocontract to the proper diameter. Instead of using a screw, I shall usefor outside fastenings a headed nail or spike.

My invention is not only applicable to doors but it will be found veryuseful for holding windowshutters open.

I am aware that a socket with a perforated rubber diaphragm has beenused before my invention for holding doors and shutters open; but I amnot aware that there has ever been usedbe fore my invention, a rubberblock fitting into a socket for this purpose; nor such a block providedwith means for adjusting it to the socket so as to provide for wear, andalso to make the fastenings hold more or less firmly, as maybe required.

The utility 'of my invention lies in its exceeding cheapness andsimplicity, and the great convenience with which either a door orshutter may be retained open and released again from closing.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, 1s-

The combination, with a socketedbloek, b, of an India-rubber block, c',confined by a central adjustable fastening, the same being for fasteningor holding doors and shutters, substantially as described.

WELLINGTON C. WENDELL.

Witnesses:

S. G. PAYN, JOHN CHASE, Jr.

